OKAMOTO INDUSTRIES, INC.

OKAMOTO INDUSTRIES, INC. Patent applications

Patent application number

Title

Published

20100241089

SKIN PATCH LAMINATE BODY - A skin patch laminate body includes a skin patch body having a base layer and a first adhesive layer formed on one side of the base layer for adhering directly to a skin, and a heat imparting body having an exothermic agent accommodating layer and a second adhesive layer formed on one side of the exothermic agent accommodating layer for adhering to the other side of the base layer, wherein the adhesive strength between the second adhesive layer and the base layer is less than the adhesive strength between the first adhesive layer and the skin.

09-23-2010

20090152758

METHOD FOR PRODUCING DEHYDRATING SHEET - The present invention provides a method for producing a dehydrating sheet comprising two films at least one of which is a polyvinyl alcohol film, and a high osmotic pressure material interposed between the films, wherein the polyvinyl alcohol film is formed by a stretching treatment after extrusion molding, followed by a heat treatment at 150 to 250° C. and a water treatment. According to the present invention, it is possible to provide a dehydrating sheet comprising a polyvinyl alcohol film which has excellent water permeability, is prevented from forming pinholes, and is not significantly expanded or shrunk due to the absorption of water.